What do you do with your iPhone or iPad when it’s sitting next to your Mac? Air Display connects your iOS device and your Mac over Wi-Fi, allowing you to use the additional screen space as part of your Desktop -- and also interact via the touch display. The possibilities are numerous; designating a display to your Twitter and IM clients or grouping your Photoshop palettes and brushes on to one screen are just a couple of examples.

It may look a little goofy in action, but we're pretty excited to try out Illusion Labs'new extreme sports game Touch Grind BMX. It's the spiritual successor to the fun early iOS multi-touch game Touch Grind in which players flicked around a skateboard on the screen with their fingers instead of feet. This new game ups the ante in many different ways and brings it into a full-fledged 3D world.

Everyone knows in their heart they need to do a better job backing up their data. We need to make Time Machine a regular part of our lives, we need to hit Save a little more often, and we need to regularly sync our iPhones with iTunes to keep our data current. We know we need to do this stuff and we always mean to do it, but we don't. And then we wish we had.

Just recently after restoring our iPhone, we forgot to make a current backup and we lost some great shots of our dog playing basketball and some of our game prizes and badges. We can't get the prizes back, but what can we do about the pictures? Nothing as it turns out. Nothing, but be proactive and it just so happens there's more than one app for that.

We don't simply hand out 5 out of 5 Editor's Choice ratings to every iOS game that comes along. It takes something pretty special to wow us like that, but Super Stickman Golf was more than up to the task. We awarded the game our coveted perfect score last week in our review.

The ingenious Puzzle Quest, which hit the Mac in 2008, the iPhone in 2009, and the iPad in 2010, was essentially a role-playing game, only all the "combat" is turn-based match-three face-offs against AI-controlled opponents. Bejeweled battles, basically. The formula was addictive, satisfying total RPG newbies and more hardcore players alike. Puzzle Quest 2, a universal app for iPhone and iPad, is more of the same, but it's cranked up the "epic" dial.

This music game for iPad hits the sweet spot between difficult and soothing. The gameplay is so basic they don't even bother explaining it to you. But it's also exhilarating and lovely, and addictive in a way we can't quite explain either.

Possibly our favorite aspect of iOS gaming is the simple fact that anybody can develop, and they can do it cheaply. This leads iOS gaming away from the ultra-serious hardcore tone of console gaming, and gives it its very own personality. Lately, that personality has been utterly bonkers. First Desctructopus. Then Laser Dolphin. Now we've got Techno Kitten Adventure to add to our stable of increasingly weird iOS titles.

Over the course of the holidays, Chair's Infinity Blade came out and blew the iOS user base away by proving just how amazing a game could look on an iPhone, iPod touch, or iPad. By the time you'd fought your way through the castle time and time again, gradually leveling up your character and gaining weapons, armor, and magic items that could slay almost any opponent, you wanted more. And as of Thursday, Chair responded, releasing a free, full-fledged expansion to the title in the form of Infinity Blade: Arena.

The iPad 2 is an amazing device capable of all sorts of wonderous feats, but it just doesn't have the awesome 3D whizzbang gadgetry of some other new devices. i3D is hoping to change that with a new 3D app that brings glasses-free 3D to the iPad. We can't wait for this software to be licensed and used in actual apps.

The Mobile Safari web browser Apple includes with every iOS device is quite fine indeed, but some simply want the freedom of choice we enjoy on desktop platforms. Now that the popular Opera Mini browser is making the leap onto the iPad, we have more choices than ever.